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Wed Aug 27, 2003 6:38 pm

is anyone running a progressive on their square if so email me a detailed pic of your set up please

Thu Aug 28, 2003 5:26 am

i have never had good luck with progressives they work good right out of the box but once they need rebuilding just throw it away. Call Alex at Isp West and get some of the new brazilian reproduction dual 34 Solexs they are just like original dual carbs or just put some Webers on. Single carbs give vw's dead spots because the gas has to travel so far. just my experience tho.

Thu Aug 28, 2003 7:11 am

well its to late cuz i own the carb and already cut my engine decklid by tie rod ends are shot so i havent been driving the car it runs pretty good tho but i just wanted to see if anyone else had this set up i know duals are much better i stupidly traded my 40's for two front fenders and a front apron and they guy through in two rear fenders i was desperate to fix the body because some moron slamed the brakes on my mom in the rain and put his hitch through my apron luckily that was the only damage well it has not even one wave on it its ready for the paint and i finally installed the progressive a long time ago a vw mech that i liked alot told me if i ever get rid of my 40 to use a progressive so i took his advice im gonna diamond plate my engine cover so i dont have to use that plastic cover that your suppose to cover the carb with maybe itll give it atleast a lil better look a lil hump in the decklid really dosent bother me

Mon Sep 01, 2003 8:22 am

i heard all cylinders dont hit when idleing using 34's

Mon Sep 01, 2003 1:21 pm

72sQuarey wrote: i heard all cylinders dont hit when idleing using 34's

Sound to me like another myth. I have never had a problem with them nor herd of one unless it had other issues.

Wed Sep 24, 2003 6:43 pm

dead spots can someone explain this to me. and does anyone else have any input on this

Wed Sep 24, 2003 10:04 pm

72squarey, what exactly do you mean by stating your occupation in your profile as a vw mechanic? With all due respect, based on some of your comments and questions in these threads, I would really be nervous in putting my car's well being into your hands!

Thu Sep 25, 2003 3:01 pm

well i never said i was an expert
general mechanics is mostly what i meant sorry i wasnt more clear
but what i have posted is my experienses with type 3's
and or my opinions thats what this place is for to get a wide range of info and then select what you want to use and what you think is novice you ignore but anyway there is a place in san antonio tx by the name of peirce automotive and he is the one that told me not to install 34's actually he said i could if i wanted to but he wouldnt do it for me because of something that occurs when your idling really dont remember what it was so i took his advise and bought a progressive i have an automatic so its not like i need alot of juice to take off cuz it wont burn rubber so i think a progressive is right for me to just cruise you dont have to bash me bro if you dont like what i post dont read it and also i never said i offered services but since i have thousands of hours working on my cars i do consider myself somewhat of a vw mech whether its your definition or not

Thu Sep 25, 2003 7:04 pm

thats cool :)

Thu Sep 25, 2003 8:26 pm

It's been my experience too that the progressive carb on an air cooled VW will cause some bad flat spots off idle.... on the plus side though, you don't have to worry about synchronizing dual carbs anymore!

Thu Sep 25, 2003 9:24 pm

Dead or flat spots are areas in an engines operating range where the engine doesn't perfom well. Generally it refers to an area of rpm where power is lower than it should be. It is usually caused by problems with fuel mixture, Ignition advance or incompatibilities between the two. If youv'e ever driven a car where you accelerate and somwhere between starting and top speed you feel a certain area where the car seems to lose power or stall, that is a flat spot.
The problem with the gas having to travel so far in your single carb setup is that the carb and manifold are isolated from the engines heat. This causes problems. Stock vw's with single carbs used a heat riser to compensate for this and when they don't work there are often problems.
If the carb and manifold are cold the fuel in the air fuel mixture tends to condense(form droplets instead of vapor). This means that There are very rich areas(the fuel droplets) and very lean areas(The air with little fuel vapor mixed in). So you have the problems of a very lean mixture and a very rich mixture+the problems of having both at the same time. This is compouded by the fact that a gases temperature decreases as its pressure decreases(like under the throttle plate in a carb or in a manifold), so the air in the carb/manifold is even colder than the outside air. I've seen drops of sweat form and then pour down the carb of a type one with a clogged heat riser because the carb was cold enough to cause moisture in the air to condense on its surface. The engine had also just burned a valve. I've heard that in cold weather ice can even form on the side of the carb.

Fri Sep 26, 2003 8:15 am

Thanks for the info guys. I live in south Texas where it is mostly tropical weather year round do you think i can still experiance this?

Fri Sep 26, 2003 12:51 pm

yep, you sure can. don't worry, you'll feel it.

And single carbs are especially bad on type 3's, they need dual carbs to keep cool, especially in a place like tx. oh well, live and learn, good luck

Fri Sep 26, 2003 1:34 pm

I am in TX too and have run progressives on type 1 , 2/4 and type 3 and you CAN tune them ( at least I can! LOL) to run well. these carbs get alot of negative posts but I guess it depends on things like...

the climate ( of course they probably run better in warmer weather, but in winter here ( or what we call winter) you do need to adjust the choke a few times as the weather changes)

the kit used ( jetting, air cleaner type/height)

the condition of the engine overall and the tune-up and all related components

the skill(s) of the person doing the above.

I am not saying dual carbs are not good , they are, but some peeps can't afford them or have the OTHER skills to set them up either...

It all boils down to what you want to try and persevere to work with and Bad Carbs exist in ALL categories, knowing when your up against a farked up carb and not something else can be tricky

Just MHO on the prospect of running a Progressive... to each there own as they say :wink:

Tue Oct 07, 2003 10:36 am

hey kief,
do you know if the progressive goes bolted to the engine case
my progressive kit came with some brackets but i dont know if they are for my application. I'm talking about right in the center of the block. They instructions say it does but I cant figure out what brakets to use because none of them are long enough to reach the manifold from the top of the block.

Wed Oct 08, 2003 2:53 pm

has anyone else done this before?

Wed Oct 08, 2003 5:18 pm

I helped a friend do it once, but I guess I ll just keep my comments to myself...

dual carbs are the way to go \:D/

Wed Oct 08, 2003 7:21 pm

I already have the motor running, timing is great and idles smooth. I ran the car four about 2 hours with no problems I just need to know if running it without the manifold bolted to the engine is gonna give me some problems. Hey dude I got no beef with you I played around in the rants and thats where that stays dont come over here with your attitude and act all smart because your the one that looks like an a55.

Wed Oct 08, 2003 7:27 pm

oh yea,
I had dual forty webbers on it. Till I traded them for some parts I needed badly. Those carbs ran smooth on my square as well but eventually this 1641 is gonna go into a fastback that I am turning into a roadster and I will purchase a complete turnkey with duals for my square. Im just debating whether to start that project or my 1960 bug?? Oh well only time will tell.

Wed Oct 08, 2003 7:27 pm

oh yea,
I had dual forty webbers on it. Till I traded them for some parts I needed badly. Those carbs ran smooth on my square as well but eventually this 1641 is gonna go into a fastback that I am turning into a roadster and I will purchase a complete turnkey with duals for my square. Im just debating whether to start that project or my 1960 bug?? Oh well only time will tell. And that is why I dont know about progressive's smart ass.